Sakitamiwa Classification Jun 2026

How to in specific cases.

, also known as the "Red Scar" (或红色瘢痕期) , is defined by the complete covering of the ulcer floor by regenerating epithelium . The white fibrin coating has completely disappeared, leaving a smooth, flat surface. This new scar tissue is highly vascular and appears markedly red , often standing out prominently against the surrounding paler mucosa. Under close observation, many tiny capillaries and blood vessels can be seen coursing through this fresh scar.

The healing phase signifies a period of active repair, where the body is working to close the mucosal defect. During this stage, the ulcer is no longer considered "active" in the same sense, but healing is incomplete.

The Sakita-Miwa classification is more than just a descriptive list; it is a critical diagnostic guide. For instance, an ulcer in the sakitamiwa classification

Classification: A Shinto concept. One of the four souls (Mitama) in Kokugaku tradition. Represents blessing, joy, and mystical fortune. Often depicted as a gentle, light-emitting spirit.

Regenerative epithelium (new tissue) appears around the margins of the ulcer, making them look smoother or less distinct than in the active stage. The white coat begins to disappear.

: The redness fades, and the area becomes a white scar as the mucosa fully matures. Clinical Importance Healing Assessment How to in specific cases

The Sakita-Miwa system classifies ulcers into three main phases, which are further divided into sub-stages to create a precise six-stage continuum ( A1cap A sub 1 A2cap A sub 2 H1cap H sub 1 H2cap H sub 2 S1cap S sub 1 S2cap S sub 2 A-Stage (Active Stage) The Active Stage indicates a fresh, inflammatory ulcer. A1cap A sub 1

It appears to be either:

The system categorizes ulcers into three main stages, each subdivided into two further phases. 1. Active Stage (Stage A) This represents the acute phase of the ulcer. This new scar tissue is highly vascular and

The Healing Stage represents the phase where the ulcer begins to close, and new tissue forms. H1cap H sub 1

This phase is characterized by the active regrowth of new tissue (regenerating epithelium) over the ulcer crater. The progression from H1 to H2 shows the ongoing reduction in the size of the ulcer defect.

: The surrounding tissue edema begins to subside, clearing up the boundaries of the wound. The ulcer crater remains deep, but a delicate, thin red halo (marginal zone) begins to encircle the white slough, signaling that the body is preparing to transition into a healing phase. Surrounding mucosal folds begin converging uniformly toward the ulcer edge. 2. The Healing Stage (H)